Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-08-16
2011-08-16
Budd, Mark (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S328000, C352S062000, C029S025350
Reexamination Certificate
active
07999448
ABSTRACT:
A piezoelectric material contains a material with the molecular formula P1−c−dDcZd, wherein: 0<c≦0.15 and 0≦d≦0.5, wherein P represents the composition Pb(Zr1−yTiy)O3and wherein: 0.50≦1−y≦0.60, wherein Z represents an additional component of the perovskite type of structure, wherein D represents a material according to the general formula [(M1O)1−p(M2O)p]a[Nb2O5]1−a, wherein M1represents Ba1−tSrtwith 0≦t≦1 and M2represents strontium or calcium and wherein: ⅔<a<1 and 0<p<1, wherein the material D contains the cryolite type of structure.
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Feltz Adalbert
Schmidt-Winkel Patrick
Schossmann Michael
Budd Mark
Epcos AG
Slater & Matsil L.L.P.
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